CLOVER — Three Clover High School students were arrested after deputies say they made plans to barter prescription pills and oxycodone at school on Friday.

Deputies were contacted by a 16-year-old boy’s mother, who said she found a text message on her phone addressed to her son notifying him that he’d be able to buy Ritalin the next day at school, according to a York County Sheriff’s report. School administrators spoke with the ninth grader and found that he hid a bottle filled with 12 Ritalin pills in the front pocket of his book bag.

The boy told school officials that he received from the pills from Michael Anton Richter, 17, during his second block class on Thursday, the report states. He said he was trying to help Richter out by selling the pills. Once he sold the pills, he claimed Richter would give him a percentage of the profits.

Richter told officials that he gave his prescribed Ritalin to the 16-year-old boy to help him out for school, but not for a cash return, the report states.

The boy also told police that Alex Jermaine Littlejohn, 17, had pills he planned to sell at school on Friday. School officials found Littlejohn with 13 Percocet and nine hydrocodone pills in a container stuffed in his book bag, the report states.

The boy, who deputies say also had a knife in his book bag, was charged with possession of Ritalin with the intent to distribute and carrying a weapon on school grounds, the report states. His father and the Department of Juvenile Justice were notified.

Littlejohn was charged with possession of oxycodone with the intent to distribute and possession of hydrocodone with the intent to distribute. Richter was charged with possession of Ritalin with the intent to distribute.

Students caught selling or distributing drugs at Clover schools are recommended for expulsion for the remainder of the school year, according to Clover School District policies.

"This was a situation that was brought to the attention of school administration by a parent and quickly acted upon," said Mychal Frost, school district spokesman. "This serves as a notice to others that this behavior will not be tolerated in our schools."